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(No Model.) 2 Sheets-Sheet 1. B. W. WARWICK.

SELF NEUTRALIZING FLEXIBLE CONDUCTOR FOB. TRANSMITTING MOTION TO MOVABLEOBJECT? Patented June 25, 1895.

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(No Model.) 2 Sheets-Sh eet 2. B. W. WARWICK.

SELF NEUTRALIZING FLEXIBLE CONDUCTOR FOR TRANSMITTING MOTION TO MOVABLEOBJECTS.

No. 541,515. Patented June 25, 1895.

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UNITED STATES PATENT OFFICE.

BENJAMIN WILLIAM XVARWICK, OF LONDON, ENGLAND.

SELF-NEUTRALIZING FLEXIBLE CONDUCTOR FOR TRANSMITTING MOTION TO MOVABLEOBJECTS.

SPECIFICATION forming part of Letters Patent No. 541,515, dated June 25,1895.

Application filed fieptember 3,1892. Serial No. 445.024. (No modeLlPatented in EnglandAugnst 10, 1891, No. 13,478 I in Germany September 1,1892, Nos. 68,485 and 69,572 in Switzerland September 1, 1892,1l0.5,670; in P181108 September No. 224,106 in Belgium October 18,1892,Ito-101,771; in Italy October 20,1892, No. 32,874; in Canada March 1.1893,1143. 42,125, andin Austria-Hungary June 21, 1893,1To. 56,082 andNo.10,257.

To LtZZ whom it may concern.-

Be it known that I, BENJAMIN WILLIAM VARXVIOK, a subject of the Queen ofGreat Britain,residingat134 HighburylIill, London, England, haveinvented a certain new and useful Self-Neutralizing Flexible Conductorfor Transmitting Motion to Movable Objects; and I hereby declare thefollowing to be a full, clear, and exact description of the invention,reference being had to the accompanying drawings, which form part ofthis specification.

The invention has been patented in the following countries: GreatBritain, No. 13,478, dated August 10,1891; Austria-Hungary, No.

56,082 and No. 10,257, dated June 21, 1893;

Germany, Nos. 68,485 and 69,572, dated September 1, 1892; Italy, No.32,874, dated October 20, 1892; Canada ,No. 42,125, dated March 1, 1893;Switzerland, No. 5,670, dated September 1, 1892; France, No. 224,106,dated Septemher 2, 1892, and Belgium, No. 101,771, dated October 18,1892.

Thisinvention consists mainly in the special means for conveying regularor intermittent motion from a clock or other progressive orreciprocating mechanism by the agency of a flexible or jointed conductorin such a manner as to allow attaching at its distant end receiv ingmechanism to be movable in any direction without interrupting thetransmitting movements of the conductor or the relative accuracy betweenthe stationary origin and the indications on the movable receiver.

This invention has reference in particular to that class of instrumentsknown as hand stamps for time and date and other kindred machines forgiving information. From a clock the motion may be taken olf the minuteaxle, or center wheel axle, or off a more slowly moving part which mayhave to be added. The conductor may consist of a helical spiral, whichconveys motion around curves. 1 may employ a second train to drive theflexible conductor liberated by the first clock at intervals. The motionmay be conveyed around the walls of a building and used at variouspoints as desired.

When a helical spiral is subjected to power tending to rotate it thecoils are liable to yield more or less or distend in the direction ofthe spirals and this tends to inaccurate indications. I obviate this byso joining up left and right-handed spirals as to neutralize thesevariations; or, by employing two or more conductors rotating in oppositedirections so connected to the receiver as to neutralize their owninaccuracies.

Figure l is an external view of one form of the invention, the face ofthe stamp being shown for convenience in diagrammatic form, the detailof which appearsin section in Fig. a. In this case rotary motion iscommunicated from some part or parts of the clock-work to spirals A andA. These spirals are held together at suitable places B, and communicatemotion by suitable gearing in stamp U to hands on dial-plate D. D is aminute-hand and Q is an hour-hand. The dial D is the reverse of anordinary clock-dial and the haudsD' Q are moved in a direction oppositeto those of a clock. Fig. 2 is a representation of impression fromdial-plate D. Fig. 3 is a representation of impression from a modifiedform'of dial-plate adapted for postal purposes. Fig. at is an elevationof gearing within the stamp. Fig. 5 is a plan of same connected to thedriving mechanism. Fig. 6 is a section of stamp-frame. Fig. 7 is amodified form of the flexible shafting. Fig.8 shows a modifiedarrangement of motion for transmitting intermittent motion. Fig. 9 is aview of a detail.

To the set-hands H of the clock I attach the wheel G which acting on thepinion J drives the wheel K and the spiral A. The wheel K operatingwheel K- drives the spiral A in the opposite direction. The spiral Amoves pinion E and axle F. The pinion E drives crown wheel F. The spiralA moves pinion E and axle G. The pinion E also aids in driving crownwheel F. As the propermotion of spiral A is the opposite to that ofspiral A, but is communicated to the opposite side of crown wheel F itis obvious that the effect of the proper motions is to turn F in thesame direction, but any variations in the spirals arising fromdistention or other cause common to both spirals produce no elfect oncrown wheel F, because they tend to give equal and opposite motions.

The crown wheel F carries the minute hand D. To the crown wheel F isrigidly attached the pinion L, which by the ordinary clock motion,vizz-wheel M, pinion N and wheel 0 carries the piece P to which isattached the hour hand Q.

The right handed spiral R Fig. 7 is attached to rod T which at itsfarther end is attached to left handed spiral S. This combination may bedivided into any suitable number of sections, but it is not so effectiveas the two spirals above described. This modification is designed toaccomplish the same purpose as the two spirals A, A before described inneutralizing the effect of any variations in the spirals, as one spiralis reversed from the other and whatever cause loosen or distend thecoils of one spiral will have the opposite effect on the other spiral.The spirals are held to the rod T, by soldering or in any other desiredway.

U, Fig. 8, is spindle of some part of clock work, say, the minute wheel.U has two flattened parts V, V. The piece W has its teeth X resting onthe spindle U except when the flattened portions V come round. It isthen freed and is forced round one revolution by the action of spring Yactingthrough suitable gearing Y Y and Y on pinion Z of rod Z which rodis attached at one end to piece WV and at the other end to spiral A. Thewheel B connected to spiral A operates on wheel 0 and so givesreversemotion to spiral A. Thus the revolution of pinion Z is communicated tothe spirals and the motion is controlled by the master clock through thespindle U.

I do not limit myself to the forms herein shown, for my invention iscapable of indefinite variations, especially as regards the dialportion, but I only show certain forms to indicate clearly the natureand scope of the invention.

I claim- 1. In combination, the movable time stamp having handsoperating mechanism in the stamp, including a crown wheel F, a timemotor mechanism and the flexible shafting comprising the two shafts A,A, connected to said motor mechanism to be rotated in oppositedirections relatively to each other the pinions on opposite sides of thecrown wheel and connected with the said shafts, substantially asdescribed.

2. In combination, the movable time stamp having hands and operatingmechanism there for, the motor mechanism and the flexible shaftingcomprising the right and left sections of spirals arranged-end to endand connected together, the said sections being of substantially thesame diameter substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

WILLIAM HENRY MUNNs, WILLIAM ALFRED LYMES.

